LM5104SDX/NOPB

Overview

The LM5104SDX/NOPB is a high-voltage half-bridge gate driver manufactured by Texas Instruments. It features two drivers with peak output currents of 1.8 A source and 2 A sink. The device supports bootstrap voltages up to 100 V and operates on a supply voltage range of 9 V to 14 V. Typical rise and fall times are 600 ns, with a maximum propagation delay of 56 ns. It functions within a junction temperature range of -40°C to +125°C and is housed in a 10-WSON package.

Feature Summary

• Integrated high-side and low-side drivers for synchronous half-bridge applications
• Capable of driving N-channel MOSFETs with high peak current capability
• Supports standard CMOS logic input thresholds for direct microcontroller interfacing

Applications

• Synchronous rectification in DC/DC converters
• Motor control systems requiring half-bridge topologies
• Industrial power supply designs

Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance during procurement. Confirm the package designation matches the required 10-WSON footprint for PCB layout compatibility. Ensure the ordering quantity aligns with manufacturer reel specifications to avoid partial reel handling issues.

Selection Notes

Select this component when a robust half-bridge solution with moderate switching speeds is required. The 100 V rating suits medium-voltage applications. Consider the 600 ns transition times against higher-speed alternatives if switching frequency demands exceed typical constraints. Verify input logic levels match the control circuitry voltage domain.

Part Context

This part belongs to the LM510x family of high-voltage gate drivers from Texas Instruments. It provides a compact solution for driving power switches in isolated or non-isolated converter topologies. The device integrates necessary protection features inherent to the series design.

Replacement Considerations

Direct substitutes include other LM510x variants such as the LM5106SDX/NOPB, which offers faster switching characteristics. Cross-reference pinouts and electrical ratings before substitution.